Claims
- 1. An image signal recording apparatus for recording an image signal on a recording medium, comprising:
- (A) first image signal outputting means for outputting a first image signal having a first frequency band;
- (B) second image signal outputting means for outputting a second image signal having a second frequency band and a signal component which differs from a signal component of said first image signal;
- (C) third image signal outputting means for sampling said second image signal output from said second image signal outputting means to form a third image signal having a third frequency band which is narrower than said first and second frequency bands and to output said third image signal;
- (D) recording image signal forming means for forming a recording-image signal to be recorded on the recording medium by using said first image signal output from said first image signal outputting means and said third image signal output from said third image signal outputting means; and
- (E) recording means for recording on the recording medium said recording image signal formed by said recording image signal forming means.
- 2. An image signal recording apparatus according to claim 1, wherein said first image signal includes a luminance signal having said first frequency band.
- 3. An image signal recording apparatus according to claim 2, wherein said second image signal includes a color information signal having said second frequency band, and wherein said third image signal outputting means is arranged to sample a color information signal output from said second image signal outputting means, then to form a color information signal having said third frequency band which is narrower than said first and second frequency bands, and then to output said color information signal.
- 4. An image signal recording apparatus according to claim 3, wherein said recording image signal forming means includes:
- (A) color-difference signal forming means for forming two kinds of color-difference signal by employing said luminance signal output from said first image signal outputting means and said color information signal output from said third image signal outputting means and then for outputting said two kinds of color-difference signal;
- (B) color-difference line-sequential signal forming means for forming a color-difference line-sequential signal by employing said two kinds of color-difference signal formed by said color-difference signal forming means;
- (C) first frequency modulating means for frequencymodulating said luminance signal output from said first image signal outputting means to form a frequency-modulated luminance signal;
- (D) second frequency modulating means for frequency-modulating said color-difference line-sequential signal output from said color-difference line-sequential signal forming means to form a frequency-modulated color-difference line-sequential signal; and
- (E) frequency multiplexing means for forming a recording image signal by frequency-multiplexing said frequency-modulated luminance signal formed by said first frequency modulating means and said frequency-modulated color difference line-sequential signal formed by said second frequency modulating means.
- 5. An image signal recording apparatus for recording on a recording medium an image signal obtained by imaging an object, comprising:
- (A) first image sensing means for imaging the object to generate a first image signal having a first frequency band;
- (B) second image sensing means for imaging the object to generate a second image signal having a frequency band equal to said first frequency band of said first image signal and having a signal component which is the same in kind as a signal component of said first image signal, the arrangement of picture elements of said second image sensing means differing from the arrangement of picture elements of said first image sensing means in relation to the object;
- (C) third image sensing means for imaging the object to generate a third image signal having a second frequency band and a signal component which differs in kind from a signal component of one of said first image signal and said second image signal;
- (D) fourth image signal forming means for sampling said third image signal generated by said third image sensing means to form a fourth image signal having a third frequency band which is narrower than said first and second frequency bands;
- (E) recording image signal forming means for forming a first recording image signal for one frame by using said first image signal output from said first image sensing means and said fourth image signal output from said fourth image signal forming means and for forming a second recording image signal for one frame by using said second image signal output from said second image sensing means and said fourth image signal output from said fourth image signal forming means; and
- (F) recording means for recording said first recording image signal for one frame and said second recording image signal for one frame which have been formed by said recording image signal forming means, in different regions on the recording medium, respectively.
- 6. An image signal recording apparatus according to claim 5, wherein said first image sensing means includes a first image sensor having a first number of picture elements and being arranged to generate said first image signal.
- 7. An image signal recording apparatus according to claim 6, wherein said second image sensing means includes a second image sensor whose picture elements are equal in number to the picture elements of said first image sensor and whose imaging plane is located at a position deviating from the position of an imaging plane of said first image sensor in the horizontal and vertical directions in relation to the object, said second image sensor being arranged to generate said second image signal.
- 8. An image signal recording apparatus according to claim 5, wherein said first image sensing means includes a green filter capable of transmitting a green component of an image of the object, said first image signal being an image signal corresponding to said green component of the image of the object.
- 9. An image signal recording apparatus according to claim 8, wherein said second image sensing means includes a green filter capable of transmitting a green component of the image of the object, said second image signal being an image signal corresponding to said green component of the image of the object.
- 10. An image signal recording apparatus according to claim 9, wherein said third image sensing means includes a color separating filter capable of transmitting a blue component and a red component of the image of the object, said third image signal being an image signal corresponding to said red component and said blue component of the image of the object.
- 11. An image signal recording apparatus according to claim 5, wherein said first recording image signal for one frame formed by said recording image signal forming means is composed of said first recording image signal for two fields, and wherein said second recording image signal for one frame formed by said recording image signal forming means is composed of said second recording image signal for two fields.
- 12. An image signal recording apparatus according to claim 11, wherein said recording means is arranged to record said first recording image signal for one frame formed by said recording image signal forming means in two tracks on the recording medium at intervals of one field, and to record said second recording image signal for one frame formed by said recording image signal forming means in other two tracks on the recording medium at intervals of one field.
- 13. An image signal recording apparatus for recording an image signal on a recording medium, comprising:
- (A) first image signal outputting means for outputting a first image signal having a first frequency band;
- (B) second image signal outputting means for outputting a second image signal having a second frequency band and a signal component which differs from a signal component of said first image signal;
- (C) third image signal outputting means for sampling said second image signal output from said second image signal outputting means to form a third image signal having a third frequency band which is narrower than said first and second frequency bands and to output said third image signal;
- (D) recording image signal forming means for forming a recording-image signal to be recorded on the recording medium by frequency-multiplexing said first image signal output from said first image signal outputting means and said third image signal output from said third image signal outputting means; and
- (E) recording means for recording on the recording medium said recording image signal formed by said recording image signal forming means.
- 14. An image signal recording apparatus according to claim 13, wherein said first image signal includes a luminance signal having said first frequency band.
- 15. An image signal recording apparatus according to claim 14, wherein said second image signal includes a color information signal having said second frequency band, and wherein said third image signal outputting means is arranged to sample a color information signal output from said second image signal outputting means, then to form a color information signal having said third frequency band which is narrower than said first and second frequency bands, and then to output said color information signal.
- 16. An image signal recording apparatus according to claim 15, wherein said recording image signal forming means includes:
- (A) color-difference signal forming means for forming two kinds of color-difference signal by employing said luminance signal output from said first image signal outputting means and said color information signal output from said third image signal outputting means and then for outputting said two kinds of color-difference signal;
- (B) color-difference line-sequential signal forming means for forming a color-difference line-sequential signal by employing said two kinds of color-difference signal formed by said color-difference signal forming means;
- (C) first frequency modulating means for frequency-modulating said luminance signal output from said first image signal outputting means to form a frequency-modulated luminance signal;
- (D) second frequency modulating means for frequency-modulating said color-difference line-sequential signal output from said color-difference line-sequential signal forming means to form a frequency-modulated color-difference line-sequential signal; and
- (E) frequency multiplexing means for forming a recording image signal by frequency-multiplexing said frequency-modulated luminance signal formed by said first frequency modulating means and said frequency-modulated color-difference line-sequential signal formed by said second frequency modulating means.
- 17. An image signal recording apparatus for recording on a recording medium an image signal obtained by imaging an object, comprising:
- (A) An image sensing part, including:
- (1) image sensing means for imaging the object to generate a first image signal having a first frequency band and a second image signal having a second frequency band different from said first frequency band and a signal component which is different from a signal component of said first image signal; and
- (2) third image signal outputting means for sampling said second image signal generated by said image sensing means to form a third image signal having a third frequency band which is narrower than said first and second frequency bands and to output said third image signal; and
- (B) a recording part provided integrally with said image sensing part, including:
- (1) recording image signal forming means for forming a recording-image signal to be recorded on the recording medium by using said first image signal output from said image sensing means and said third image signal output from said third image signal forming means; and
- (2) recording means for recording on the recording medium said recording image signal formed by said recording image signal forming means.
- 18. An image signal recording apparatus according to claim 17, wherein said image sensing means includes;
- (a) a first image sensor for imaging the object to generate a first image signal having a first frequency band; and
- (b) a second image senser for imaging the object to generate a second image signal having a second frequency band and a signal component which differs from a signal component of said first image signal.
- 19. An image signal recording apparatus according to claim 18, wherein said recording image signal forming means is arranged to form a recording image signal to be recorded on the recording medium by frequency-multiplexing said first image signal output from said image sensing means and said third image signal output from said third image signal forming means.
- 20. An image signal recording apparatus according to claim 18, wherein said first image sensor includes a green filter capable of transmitting a green component of an image of the object, said first image signal being an image signal corresponding to said green component of the image of the object.
- 21. An image signal recording apparatus according to claim 20, wherein said second image sensor includes a color separating filter capable of transmitting a blue component and a red component of the image of the object, said second image signal being an image signal corresponding to said red component and said blue component of the image of the object.
Priority Claims (1)
Number |
Date |
Country |
Kind |
63-111335 |
May 1988 |
JPX |
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Parent Case Info
This is a continuation of application under 37 CSR 1.62 of prior application Ser. No. 345,411, filed Apr. 28, 1989, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4719518 |
Kido et al. |
Jan 1988 |
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4918538 |
Saito et al. |
Apr 1990 |
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5032930 |
Suetaka et al. |
Jul 1991 |
|
Non-Patent Literature Citations (1)
Entry |
Aizawa et al., High Resolution Electronic Still Camera with Two MOS Imagers, May 10, 1985. |
Continuations (1)
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Number |
Date |
Country |
Parent |
345411 |
Apr 1989 |
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